Patents by Inventor Bit Tie Chan
Bit Tie Chan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200126958Abstract: A light-emitting device with at least two light-emitting dies encapsulated with two different types of the wavelength-converting materials is disclosed. Each of the wavelength-converting materials is configured to produce a visible light from a narrow band light near UV region produced by the light-emitting dies, but with different correlated color temperatures (CCT) and different spectral contents. The combination of the two visible light forms the desired visible white light. The Color rendering index of the light-emitting device is tunable by adjusting the supply current to the light-emitting dies. In another embodiment, a light module with tunable CRI for an illumination system is disclosed.Type: ApplicationFiled: December 18, 2019Publication date: April 23, 2020Applicant: Bench Walk Lighting LLCInventors: Keat Chuan Ng, Bit Tie Chan, Kheng Leng Tan
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Patent number: 10522518Abstract: A light-emitting device with at least two light-emitting dies encapsulated with two different types of the wavelength-converting materials is disclosed. Each of the wavelength-converting materials is configured to produce a visible light from a narrow band light near UV region produced by the light-emitting dies, but with different correlated color temperatures (CCT) and different spectral contents. The combination of the two visible light forms the desired visible white light. The Color rendering index of the light-emitting device is tunable by adjusting the supply current to the light-emitting dies. In another embodiment, a light module with tunable CRI for an illumination system is disclosed.Type: GrantFiled: December 23, 2010Date of Patent: December 31, 2019Assignee: Bench Walk Lighting, LLCInventors: Keat Chaun Ng, Bit Tie Chan, Kheng Leng Tan
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Patent number: 9159886Abstract: A lighting apparatus having wavelength-converting materials formed in a carrier layer is disclosed. In one embodiment, the lighting apparatus has a light source attached to a substrate that is assembled in a housing. The light source is configured to emit a substantially narrow band light that is transformed into broad-spectrum white light by the wavelength-converting materials positioned on the carrier layer. The wavelength-converting materials and the carrier layer are distanced away from the light source, such that the carrier layer is thermally isolated from the light source.Type: GrantFiled: April 19, 2011Date of Patent: October 13, 2015Assignee: Intellectual Discovery Co., Ltd.Inventors: Kee Yean Ng, Bit Tie Chan
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Patent number: 9147813Abstract: A package for a light source, a semiconductor device, and methods of manufacturing the same are disclosed. In particular, a Light Emitting Diode (LED) dice is attached to a bonding pad of the light source package by two discrete types of different adhesives. One of the adhesives may be curable under exposure to Ultraviolet (UV) light and the other adhesive may be cured under thermal radiation, but is stable when exposed to UV light.Type: GrantFiled: September 9, 2011Date of Patent: September 29, 2015Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Keat Chuan Ng, Bit Tie Chan, Kheng Leng Tan
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Publication number: 20130307013Abstract: A light-emitting device having a plurality of leads, a body, a light source die, a dark layer, and a substantially transparent encapsulant is disclosed. The dark layer absorbs a substantial portion of ambient light. The light source die may be a top emitting die. The light-emitting devices may be suitable for applications such as a large scale electronic display where each pixel is represented by each light-emitting device. The dark layer may contribute towards high contrast ratio by absorbing substantial amount of ambient light falling thereon.Type: ApplicationFiled: May 15, 2012Publication date: November 21, 2013Applicant: AVAGO TECHNLOGIES ECBU IP (SINGAPORE) PTE. LTD.Inventors: Bit Tie Chan, Keat Chuan Ng, Kiam Soon Ong
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Publication number: 20130062655Abstract: A package for a light source, a semiconductor device, and methods of manufacturing the same are disclosed. In particular, a Light Emitting Diode (LED) dice is attached to a bonding pad of the light source package by two discrete types of different adhesives. One of the adhesives may be curable under exposure to Ultraviolet (UV) light and the other adhesive may be cured under thermal radiation, but is stable when exposed to UV light.Type: ApplicationFiled: September 9, 2011Publication date: March 14, 2013Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.Inventors: Keat Chuan Ng, Bit Tie Chan, Kheng Leng Tan
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Publication number: 20120267657Abstract: A lighting apparatus having wavelength-converting materials formed in a carrier layer is disclosed. In one embodiment, the lighting apparatus has a light source attached to a substrate that is assembled in a housing. The light source is configured to emit a substantially narrow band light that is transformed into broad-spectrum white light by the wavelength-converting materials positioned on the carrier layer. The wavelength-converting materials and the carrier layer are distanced away from the light source, such that the carrier layer is thermally isolated from the light source.Type: ApplicationFiled: April 19, 2011Publication date: October 25, 2012Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.Inventors: Kee Yean Ng, Bit Tie Chan
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Publication number: 20120162979Abstract: A light-emitting device with at least two light-emitting dies encapsulated with two different types of the wavelength-converting materials is disclosed. Each of the wavelength-converting materials is configured to produce a visible light from a narrow band light near UV region produced by the light-emitting dies, but with different correlated color temperatures (CCT) and different spectral contents. The combination of the two visible light forms the desired visible white light. The Color rendering index of the light-emitting device is tunable by adjusting the supply current to the light-emitting dies. In another embodiment, a light module with tunable CRI for an illumination system is disclosed.Type: ApplicationFiled: December 23, 2010Publication date: June 28, 2012Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.Inventors: Keat Chuan Ng, Bit Tie Chan, Kheng Leng Tan
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Patent number: 8033693Abstract: A system and method for lighting structure designs, for example LED packaging, reflector designs and optics in lighting fixture, has been illustrated. In one embodiment, the lighting structure has multiple reflective surfaces such that a first reflective surface and a second surface form a first angle less than 90 degree while the second surface and a third reflective surface forms a second angle of less than 270 degree. The method can be applied in both LEDs package designs and second level optical application designs of a light module.Type: GrantFiled: April 30, 2009Date of Patent: October 11, 2011Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.Inventors: Chin Nyap Tan, Siang Ling Oon, Bit Tie Chan
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Publication number: 20100277925Abstract: A system and method for lighting structure designs, for example LED packaging, reflector designs and optics in lighting fixture, has been illustrated. In one embodiment, the lighting structure has multiple reflective surfaces such that a first reflective surface and a second surface form a first angle less than 90 degree while the second surface and a third reflective surface forms a second angle of less than 270 degree. The method can be applied in both LEDs package designs and second level optical application designs of a light module.Type: ApplicationFiled: April 30, 2009Publication date: November 4, 2010Inventors: Chin Nyap Tan, Stang Ling Oon, Bit Tie Chan